소성∙가공 (Transactions of Materials Processing)

  • 제20권6호
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  • Pages.461-467
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  • 2011
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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DOI QR코드

DOI QR Code

인위적 체적력 기법에 의한 후방 가압 및 인장을 고려한 인발공정의 정밀 시뮬레이션 기술

Precision Simulation of Drawing Processes Considering Back Pressing or Tension with Artificial Body Force Scheme

  • 엄재근 ((사)경상대수송기계부품기술혁신센터) ;
  • 심상현 (경상대학교 기계공학과 대학원) ;
  • 조재민 (경상대학교 기계공학과 대학원) ;
  • 김홍석 (대구대학교 자동차산업기계공학부) ;
  • 전만수 (경상대학교 기계항공학부/공학연구원)
  • 투고 : 2011.08.25
  • 심사 : 2011.09.19
  • 발행 : 2011.10.01
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초록

An artificial body force method is presented to accurately simulate drawing processes in which back pressing is exerted. A rigid-plastic finite element method is applied together with a numerical scheme to eliminate the numerically incurred plastic deformation in rigid or elastic region, which significantly influences simulation results because it eventually changes reduction of area in drawing. Back tension or compression is applied by body force at the rear part of material to obtain numerically stable solution. Two typical examples are shown, a drawing process with back tension applied and a tube drawing with a fixed plug and back pressing applied.

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참고문헌

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